Câu trả lời ngắn gọn: có, ảnh 2x2 inch mà người Mỹ thường dùng ở văn phòng hộ chiếu Mỹ vẫn dùng được cho visa điện tử Campuchia, vì ứng dụng trực tuyến đọc kích thước pixel và dung lượng tệp, chứ không phải kích thước in trên giấy (inch hoặc milimet). Dưới đây là lý do tại sao con số 35x45 mm cứ xuất hiện và điều gì thực sự quan trọng khi bạn tải ảnh lên.

A 2x2 inch photo is fine for the Cambodia eVisa. The online application is a digital upload that reads your photo by its pixels and file size, not by a printed inch or millimeter measurement, so the US 2x2 inch (51x51 mm) format Americans already know works without modification. The 35x45 mm figure you may have seen is the older printed passport-style dimension that describes the framing — head and shoulders, face filling most of the frame — rather than a rule the uploader checks. What the system actually requires is a JPEG under 2 MB, ideally 600x600 pixels or larger and roughly square, on a plain white background, with a neutral expression and no glasses. Crop a standard US passport photo to a square and it uploads cleanly.
This guide explains exactly where the 35x45 mm number comes from, why your 2x2 inch photo still works, and the handful of things the upload validator genuinely does enforce so your file clears on the first try. When your photo is ready, you can apply in a few minutes. For the wider picture — cost, processing, documents — start at our Cambodia visa for United States citizens hub and work down from there.
And the framing on a US 2x2 and a 35x45 portrait is nearly identical in practice. Both want your head and the top of your shoulders filling the frame, centered, looking at the lens. The 2x2 is square and the 35x45 is slightly taller, but once your face dominates the frame the difference is trivial and the uploader is happy with a square crop. If you want the precise pixel math and the megabyte limit spelled out, our deep dive on Cambodia eVisa photo size and file format covers the exact numbers the validator reads.
So a US passport photo is doubly convenient: it already matches the framing, and it already matches the content rules. The only step is making sure the digital file is a JPEG under 2 MB at 600 pixels or more per side. If your photo has already been bounced and you are not sure which rule caught it, our guide to fixing a rejected Cambodia eVisa photo maps each flag to the exact correction so you can re-upload the same day.
Honestly, for most Americans the path of least resistance is to take a fresh shot at home rather than wrestle with an old print. A phone camera against a white wall in daylight produces a compliant photo in two minutes, and it is born digital so there is no scanning or glare to fight. Our step-by-step Cambodia eVisa iPhone photo guide for Americans shows each tap from camera setting to upload, and the take-it-with-your-phone walkthrough covers the same routine on any device.
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Thẻ nhập cảnh điện tử Campuchia (e-Arrival Card) là một bước riêng biệt so với visa điện tử (eVisa), và phí rất nhỏ — $5 USD, được xác minh qua chúng tôi, gồm 14 trường thông tin, và được điền trong vòng 7 ngày trước khi bạn bay. Dưới đây là chi tiết về những gì khoản phí này bao gồm, lý do tại sao nó không được gộp vào giá visa, và thời gian cần thiết để bạn có thể di chuyển nhanh chóng tại cửa kiểm soát an ninh.
Thẻ nhập cảnh điện tử Campuchia gồm 14 trường thông tin thuộc ba phần, cần được điền trong vòng 7 ngày trước khi bạn hạ cánh. Dưới đây là thông tin chi tiết về từng trường, theo đúng thứ tự yêu cầu trong biểu mẫu, cùng với phiếu hướng dẫn định dạng ngày tháng giúp nhận diện du khách Mỹ tại máy tự phục vụ.
Thẻ nhập cảnh điện tử Campuchia yêu cầu 14 thông tin thuộc ba phần — thông tin cá nhân, chuyến bay và thời gian lưu trú, và một tờ khai hải quan ngắn. Dưới đây là thông tin cụ thể cần cho từng mục và bốn thứ bạn cần chuẩn bị trước khi bắt đầu.
Notice that none of those are about whether your photo is 2x2 inches or 35x45 mm — they are about the digital file behind the dimension. Get the JPEG, the 2 MB ceiling, and the 600-pixel floor right, and the inch-versus-millimeter question never matters. For the complete content checklist alongside the file specs — background, expression, glasses, and the rest — our full Cambodia eVisa photo requirements guide for US citizens lays out every rule in one place.
Old prints are the one to be careful with. A 2x2 photo from a passport you renewed three years ago may be dimensionally correct but fail the recency rule — the photo must be from the last 6 months and still look like you. If yours is older than that, shoot a fresh one rather than reuse it. Before you submit, it is worth running the full Cambodia eVisa photo checklist so size, recency, format, and content all clear together, and if you would rather not shoot at home, our where to get a Cambodia visa photo guide covers the US drugstore and pharmacy options.
And if the photo is flagged after you submit, it is a same-day fix, not a fresh application. You get an email listing exactly what to re-upload — usually a JPEG instead of a HEIC, or a fresh shot against a white wall. There is no extra charge: free resubmission is part of the all-in price, and the moment you reply with a corrected photo the 3-business-day clock keeps running. The Tourist eVisa is $80 USD all-in and the Business eVisa is $90 USD all-in, both delivered as a printable PDF by email, both with US-timezone support if anything snags. When your photo is ready, our step-by-step Cambodia eVisa application guide for Americans walks through every field.
Next steps and related reading for US citizens: apply for your Cambodia eVisa when your photo is ready, bookmark the Cambodia visa hub for United States citizens as your single reference, get the exact photo size and file format if you are unsure about pixels and megabytes, and check the full photo requirements before you upload.